U.S. hypersonic glider launched, contact lost

LOS ANGELES â€” The U.S. Defense Advanced Research Projects Agency says contact with its experimental hypersonic glider was lost after launch from Vandenberg Air Force Base on the central California coast.

The agency says in Twitter postings that its unmanned Falcon Hypersonic Technology Vehicle-2 was launched Thursday atop a rocket, successfully separated from the booster and entered the mission’s glide phase.

The agency says telemetry was subsequently lost, but released no details..